Quasianalyticity with respect to a second-order hyperbolic operator
English version (Springer): Ukrainian Mathematical Journal 33 (1981), no. 6, pp 638-641.
Citation Example: Chernyavskii A. G. Quasianalyticity with respect to a second-order hyperbolic operator // Ukr. Mat. Zh. - 1981. - 33, № 6. - pp. 841-846.
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